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1979 Citroen Cx MOT Pass Rate

Pass rate for Cx models manufactured in 1979, based on 133 real MOT test results.

71.4%
Pass Rate
28.6%
Fail Rate
133
Total Tests
56,535
Avg Mileage

Data from official DVSA MOT testing records

1979 Citroen Cx MOT Analysis

The 1979 Citroen Cx has an MOT pass rate of 71.4% based on 133 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 56,535 miles on the odometer. With a 28.6% failure rate, the 1979 Cx is rated as "Very Good" for MOT reliability.

The leading cause of MOT failure for the 1979 Citroen Cx is Body, chassis, structure, responsible for 3.0% of failures. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs range from £100–500+. Brakes is the second most common issue at 0.8%. Steering follows at 0.8%.

Top failures specific to 1979 models only. The overall Cx page may show different rankings.

What Fails Most

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Body, Chassis, Structure3.0%4
2Brakes0.8%1
3Steering0.8%1

Failures per 10,000 Miles

avg. 56,535 mi

For every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.

Body & Structure0.53% per 10K miBrakes0.13% per 10K miSteering0.13% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Body & Structure0.533.0%4
Brakes0.130.8%1
Steering0.130.8%1

Mileage Statistics

56,535
Mean
64,907
Median
33,807
25th Percentile
77,152
75th Percentile
5.06% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 1979 Citroen Cx has an MOT pass rate of 71.4% based on 133 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 56,535 miles on the odometer. With a 28.6% failure rate, the 1979 Cx is rated as "Very Good" for MOT reliability.

If you own or are considering buying a 1979 Citroen Cx, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to body, chassis, structure: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely. At 56,535 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Body, chassis, structure — 3.0% of failures

Body, chassis, structure issues account for 3.0% of MOT failures on 1979 Citroen Cx models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.

Brakes — 0.8% of failures

Brakes issues account for 0.8% of MOT failures on 1979 Citroen Cx models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).

Steering — 0.8% of failures

Steering issues account for 0.8% of MOT failures on 1979 Citroen Cx models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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